Remote sensing of N deficiencies in apple and pear orchards

摘要

ISHS XXIX International Horticultural Congress on Horticulture: Sustaining Lives, Livelihoods and Landscapes (IHC2014): International Symposia on the Physiology of Perennial Fruit Crops and Production Systems and Mechanisation, Precision Horticulture and Robotics Remote sensing of N deficiencies in apple and pear orchards